Mozilla Firefox (1.0)
1. Select 'Tools' from the top menu
2. Choose 'Options'
3. Choose 'Web Features' from the left navigation
4. Select the checkbox next to 'Enable JavaScript' and click OK
Reload this site ("F5" on your keyboard)

Mozilla Firefox (= > 1.5)
1. Select 'Tools' from the top menu
2. Choose 'Options'
3. Choose 'Content' from the top navigation
4. Select the checkbox next to 'Enable JavaScript' and click OK
Reload this site ("F5" on your keyboard)